Shaft bearing



H. F. BENSON SHAFT BEARING Filed Jan. 28, 1921 INVENTOR @MW ri/v? BY HIS A TO lTo whom 'it may camera# Patented Dec. 16, 1924.

UNITED STATES PATE1 \1;TI OFFICE.

HARRY F. BENSON, vOF EOLYOKE, MASSACHUSETTS, vASSIGNOR `.120 WOBTH-INGTON PUMP AND MACHINERY CORPORATION, OF NEW 'YOISIQ N.'Y.,'"A CORPORATION OF vu Gnu! Snam' BEARING.

AApplication mea January 2s, v1921.` serial No. 446,605. 'i i' Be it known that I, HARRY F. BENSON, a

citizen of. the United -States, residing at Holyoke, county of Hampden, and State of `Massachusetts, have invented certain new and useful Improvements in Shaft Bearings, fully described and represented in the followlng specication andthe accompanying drawings, forming a part o f the same.

' Thisinvention relates to a driving head for verticalshafts suchfo r.nstance, as are used inconnection with deep -well pumps where,.in addition ,to 'radial thrust,I a large axial thrust is also presentby reason of the weight of the suspended partsand thev column uof water traveling vthrough `the pump. s 4 1 if;

-One -of the, features of the Vpresent invention is the combination with avertical shaft, of radial andzaxialor endthrust bearings working in axreservoir sealed by lubricant,

and wherein one of the rotating parts forms a pumping'meansdelivering lubricant directly to the bearings.

A further object-is tofprovide a drivin head on which the beari are so arrange that end thrust in either irection is amply taken care .of by a :proper bearing.

-In the drawings:y

Fi re 1 is a vertical section through a well. eadshowing the driving head in side elevation.l f

Figure 2-is a vertical section centrally through the driving head.

Figure 3 isa horizontal section on the line 3-3 of Figure 2.

Referring to the drawings:

The well head is mounted on the usual foundation plate 1 receiving the u per end of the well casing 2 and mounting tlie frame 3 having the upper and lower bed plates 4 and 5, the lower bed plate 5 receiving the discharge tee 6 having the outlet 7 and the head 8 of said -tee being provided .with a ,stulling box 9 4through which the vertical shaft 10 extends.

On the upper bed plate 4 is a member 11 having an opening 12 through which the shaft 10 pro]ects.v The member 11 receives that an annularlubricant reservoir thus provided havingouter and'inner walls 14 and 17, respectively','c1earance being' allowed between the shaft 10 and the tube 17.- f

. The upper end of Vthe shaft 10 `is threaded` as shown at 18, and below this"thr'e aded" portion is a`key 19 ,which yis engagedfby the keyway 2O lof a -sleeve 21, theupper`end22 of whichV isf'also threaded butjwlith" finer threadsy than the portion 18 ofthe "shaft`f1'0;

a hollow skirt 23, f formed integral' w'ith jthe sleeve 21, telescopesiover theftube' 17'forming theinner. wallof the lubricant'reservoir and extends well .i down intoth'el lubricant reservoirfand, at. its bottom, sprovide'd'with *a shouldei24 Sli I ped ohto' ,the)sleeve 21 and restingjon'sli'ou der 24 is a b'all 'race`25 which cooperates witha race 26 onjth'e e lindrical side wall 14`,`.and'with the'jba s 27 between the. racesj; ,rmsjfthe lower radial bearing. Seatin 1oii 'the ifav1e125fis al spacin sleeve 28 which xes'thepositionfofan en thrust ring 29, said end 29 cooperating with ball races'30and`31'on each side thereof and with setsof balls 32 and 33'to form axial or end thrust bearings; said races vis the cover plate-43 held by bolts 44 and which rests against the ring 37A to hold the ball race 38 and cage 36 in position.

Keyed to the upper end of the shaft-.10, as at 45` is the hub 46 of a pulleyV 47 extending down over the lubricant reservoir and formin an enclosure therefor,.the inner side of the ub 45 resting on theupper end of the sleeve 42 to hold the bearing races carried by the hollow sleeve 21 in position thereon, the pulley being held on the shaft 10 by a nut 48 screwed'onto theupper end of the sleeve 21 and a lock washer 49.

Means for adjusting the shaft 10 axially of the sleeve 21 is rovided com rising a differential screw ad]ustment, pre erably as shown, in which the upper end 22of the sleeve 21 is suitably threaded to carry a nui 50 which is also in threaded engagement tion of thel nut 50 tothe -a mate increased' with the'thrededfportion 18 zof A thegshazft 10. i The'threads on the upper:V end' 22 of' the sleeve 21 are finer than thosel on the shaft` end 18' so that :the cooperation of nuti "50 *with .fthese relatively fine:-

the shaft 18. to''isejo'r"lowerfthejsame for f the up 551'.' and e theglowrradia 25 i ,meansgfordrgininlthe'saniefivhlejai pi :aging-rin g'circumscrl" 'b in'gasaidsleeve and con-1..

2. A'vertical shaft bearing comprising a loadsustainingmeniberfhaving outer and inner spaced walls forming a lubricant reservoir therebetween, ashatsurrounded by the inner-...walle enterorly;.ofI the reservoir, a hollow sleeve carried by saidfshaft 'and telescoping over the inner wall and extending below the lubricant level to form a liquid seal,`spaced radial=l thrust bearings between the outer wall of the lubricant reservoir and the outsides of saids leeve,'a laterally extending'ringcircumscribing-said sleeve and confined '--again'st vmf` vement relative` to the sleeve, bearing means carried byxthe load sustaining member and 'engaging the Ilateral faces of gsaidfring; 'andf'lubricant pumping meansfwithl'lubricant. l y

A-1 vertical shaft fbearing' comprising a load's'ustainingf member having outer and inner spacedI .walls f ormin' f a :lubricant ,-res rvoirthcrebetweeng'fa sha surrounded by A "throu v lr verticalbliannelsi "ftheI innerfwiaill exteriorlyof'the reservoir, a

hollo'wsleeve bysad shaft and telebelow the flubricantilevel ,to form :a .rliqui seal, spaced radial thrust bearings between the outer wallef thelubricant reservoir and 'j provides '5f-'the outsideqf saidfsleeveja laterally'extendx'movements'relativei: l'to the channels '56 andiliayiri 59 sleevegj bearing means ,carried by ythe -load levels-ideata Gia the 3,5`other.

l, the" ,oil

a wm mesetas @rs-@farmed a hat drivin' the pneyarisabedrbeafbythes 'i upper and.` owe'r radiafbearwm" '-while end thrust'on the s hazt' 10 is taken up by the-two sustained by )bearing V'taining'member is takencare of'against thel cover plate43.

I l :im- LAy vertical shaft bearingcomprising a I claim:

load 'sustining'member'fhaving'outer 'and by t'tile-inner wall exterlorly of 'thereservoin a' hollow'sleeve carried by said-shaft.andr

inner Alspac'edf walls;

forming a lubricant' reservoir: therebetween a'shaft surrounded telescoping'over the inner wall vand extend-'- ing below the'- lubricant' levelto "form at -17 forming liquidseal, spaced radial thrust bearingsbe.

spherical seats receiving said faces whereby i the said bearings'are 'self-aligning, and lu'- bricant pum 'ing-'ineensY 1n' Isaidsleeve for ilushing the rings with lubricant.

Posing rradla thrust bearmgs wall 14 above Iand below the thrust bearings,

'sleeve-21.-

-sustainin'gmember and engaging the lateral faces of said ring, salid'bearing means inthel combination `with 'side andbottoin walls- 14,` 15. and; tube 17 forming1an annular lubricant -reservoir, of vertical shaft 10 within said tube carrying sleeve v21' outside said tube withvoil space between the tube andsleeveyabearing cage supported on. the inner side `of wall 14,.op

axial Vthrust .bearings 'iny said Acage, between sleeve 21-,and

said sleeve 21 being provided with radial oil assages l for pumping oil rv.te the bearings mathe-1 oil-- spacci between sleeve 21 and tube '517,iand oil 'delivery passages in 5.In -a shaftbearing, the combination withside Aand'bottoni walls 14,15 and'tube -anannular lubricant reservoir,

lmeans inf said isleevefor lushingxthe bearing of verticalA shaft 10 within said tube carrying sleeve 21 outside said tube with oil spa/ce between the 'tube and sleeve, a bearing cage 36 supportd--on-the inner-,sidefof wall 14 and carrylng spherical Aballseats 345,35, ball races 30, 31`on saids'eats, thrust ring 29;v and balls between'isaid races, radial thrust vball bearings-between sleeve 21 fand, wall. 14 above and l.below:the thrust bear' said `sleeve 21'beingfprovided' with "al oil passages `for pumping `ol`to vthe bearings f-from the oil spacebetween sleeve` 21. and

tube 17, and oil delivery passages in sleeve 2l.

6. Theeombinnton with shaft 10 can-iisg sleeve 21 with oil spam between the s 5 and sleeve, and radial oil p through the sleeve, of outer wall 14 enclosing and se ratedfromthesleevballraoesnnd balls between the wall and sleeve formmg redal thrust bearings the sleeve and axle,

at top and bottom of l thrust ball bearings 10.

it radial bearings.

In testimony whereof, I have hereunto set my hand.

HARRY F. BENSON. 

